rdmaloyjr, I'm not biased.
I've tested ZA, PCTools and Comodo on Vista. Only ZA works, not satisfactory (delays), but works. Other two have problems on network/service.
I've tested (and used) ZA on Windows 98 to Windows XP.
I've tested Outpost, Kerio, Sygate, Jetico, Look and stop...
You blame against my biased comments... I just post tested experiences of my own. The tests are mine, can't be used or applied to all users. But, after all, I'm not biased.
On antivirus world, I've used McAfee, Norton, AVG, NOD32, TrendMicro, BitDefender, Avira. There is a reason that keep me on avast. Do you really think I'm biased?